Finding the Fourth Proportional to 1,117.69, 1,675.59 and 492.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117.69 : 1,675.59 = 492.52 : x
2. Step 2: Convert to fraction form
   1,117.69/1,675.59 = 492.52/x
3. Step 3: Cross multiply
   1,117.69x = 1,675.59 × 492.52
4. Step 4: Simplify right side
   1,117.69x = 825,258.69
5. Step 5: Solve for x
   x = 825,258.69/1,117.69
6. Step 6: Final answer
   x = 738.36